Steam genebator



2 Sheets-Sheet 1.

H. FEYH.

STEAM GENERATOR.

No. 65,479. Patented June 4, 1867. v

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H. FEYH. STEAM GENERATOR.

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HENRY FEYH, OF COLUMBUS, OHIO, ASSIGNOB. TO HIMSELF, GEORGE T. EMERY,AND WILLIAM B. HAWKES, OF THE, SAME PLACE.

Letters Patent No. 65,479, dated June 4, 1867.

IMPROVEMENT STEAM GENERATORS.

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TO WHOM IT MAY CONCERN:

Be it known that I, HENRY FEYH, of Golurnbus, in the county of Franklin,State of Ohio, have invented a new and improved WatcnCirculating Steam.Boiler; and I do hereby declare that the following is a full, clear, andexact description thereof, reference being had to the accompanyingdrawing, making part of this specification, in which- I Figure 1, sheet1, is an elevation of the front side of the improved steam boiler.

Figure 2, sheet 1, is an elevation of the rear side of the boiler,showing the connecting-boxes on the ends of the inclined large and smallpipes. 1

Figure 3, sheet 2, is a transverse section, taken in a vertical planethrough the boiler.

Figure 4 is nl'ongitudinal section, when vertically throngh'the boiler.

Figures 5 :tnd 6 show the mode of connecting the ends'of inclined pipestogether to provide For expansion mid contraction.

' Similar letters of reference indicate corresponding parts in theseveral figures.

The object of this invent-ion is to more efiectually carry into cil ec'tthe principle set forth in my Letters Patent numbered respectively60,496 and 60,870, of producing a rapid circulation and evaporation ofwater in steam generators, by having chambers of different cnpucitiesconnected together and exposed to the heat of a furnace in such mannerthat the difi'erence in temperature and evspora-tivc qualities of thesechambers shall Oil-UBO a continual and forced flow-of the wnter throughthem. In the specifications oisnid Letters Patcnt,-tl1o forcedcirculation of the water was produced by means of large and small pipesarranged within the fire space. and connected to n water-chambersurrounding said space. By these arrangements, Water .wns conveyed fromthe boiler proper through the largest pipes, .iLhLl thence into thesmallest pipes, in which latter, steam "was rapidlygencrnted andconducted into the steam space above the water in the boilers.

The nature of my invention consists mainly in constructing a steamgenerator, operating upon the principle above set forth, entirely oftubes or cylinders oi diiicreut diameters, which are connected togetherin such manner that when supplied with Water and exposed in heat, thewater will be caused to circulate freely and uninterruptedly throughthem, and thus create a rapid evaporation or generation of steam. A-udin'conjunction with such arrangement, it t'urthcr consists in having theseveral tubes COlIlpOSillg the gencratocso eonnectcd and arranged withinfurnace that access can be had to each tube for cleaning it from theoutside of the furnace: at the some time this generator will admit ofbeing increased in capacity to any llcsire r extent, without diminishingits strength, ilSWlll be hereinafter described. It also consists in theuse of rt steam superheating chamber, in conjunction with a steamgenerator, in wl.ich a forced circulation of the water is produced byexposing connected pipes of different capacities to the heat of thefire-box, us will he hcrcinni'ter described.

To enable others skilled in the art to uurlcrst-mul my invention, I willdescribe its construction and operation.

1n the accompanying drawings, A represents a horizontal steam-chamber orsupcrheat-er, which is made of cylindrical form, and closczi at itsextremities by means oi heads: so that by the removal of one or both ofthese heads access can be had to the interior of the cylinder.lirepresents nhorizoutal steam, and waterchamber or receiver, ofcylindrical form, and having removableheads, like cylinder A. Thecylinder 13, which may be arranged beneath the cylinder A, as shown. isconnected to the latter by means of one or more steam ways a a, so thatas rapidly as steam is formed in the lower cylinder 13, it will becarried oh and superheated in the upper cylinder. D D represent a numberof inclined water-chambers, of cylindrical form, which are connected init suitable incuner m the lower sizle of the cylinder H and arranged atproper distances apart, so

as to form a number of water-legs, as shown in figs. 3 and 4. E Erepresent a number of inclined chambers or pipes of less capacity 'anddiameter than the pipes D, and more directly exposed to the heat of thefurnace. These pipes E are secured in a. suitable manner to the cylinderB, so as to communicate therewith above the water line, and they areinclined in the same direction as the pipes. D D, but in a. differentplane, as shown in figs. 3 and 4. G Grcpresent inclined tubes, which aresecured, at suitable distances apart, to the inclined pipes D D, onebelow the other, as shown in figs. 3 and 4.; and H H represent inclinedtubes, which are secured at suitable distances apart to the inclinedpipes E, one below the other, and which communicate at their lowerendswith the larger pipes G G, by means of three-way couplings J.

It will be seen by reference to figs 3 and 4, that each one of theinclined pipes D has three inclined pipes or tubes of smaller diametersuitably secured to it, and thateach one of the pipes E has six, smallerpipes H H secured to it at regular iutcryals apart. The object is tohave the pipes II collectively equal, or nearly so, in capacity to thepipes G G when taken collectively; or, in other words, it isdesired tohave the system of pipes of smaller diameter equal, or nearly so, to thesystem oi' pipes of greater diameter, both of which systems of pipesconnnunicate with the slennrand water-cylinder 13. It is also desirableto have the inclined pipes G and II communicate at their lower ends intriples, as shown in figs. Zand 4 one of the larger pipes, G,communicating with two of the smaller pipes H, so that the capacity ofthe pipes through which the ascending currents pass shall beconnnensnrate with those through which the descending currents pass. Bythis arrangcmeiit the water will not be retarded in its circulation, butwill he allowed to flow freely and continually through the two systemsor banks of pipes from the chamber B, back into this chamber again. Thisgenerator is supported in a suitable manner, with a furnace, K,consisting of a firc-chamber, K escape flue K deflectingqilate K andapartment, K, in which latter the couplings'of' the pipes G and Hareexposed, as shown in figs. 2 anrl4.

The furnace may be constructed of. briclgof any suitable form andcapacity which will best expose the steam generator to the action of thefire, and admit of access to the ends of the pipes or cylinderscomposing this generator. The drawings represent the upper portion ofthe furnace open, but in practice this is not designed to be so, as thecntirc'gcncrator, with theexceptionot' the extremities of its pipes andcylinders. will be enclosed, and subjected to the heat.

The deflecting-plate K is arranged in an inclined plane, between theupper parts of the inclined pipes D and the exit fine K, for the purposeof directing the heated products of combustion upward, and exposing thetwo horizontal cylinders A B to as much heat as possible. If desirable,a deflecting-plate may be interposed between the two rows of inclinedpipes D and E, for the purpose of subjecting the pipes E to a moreintense heat than the pipes D. The divisional plate which separates thechamber K from the fire-chamber serves as a support for sustaining thelower ends of the large. and small pipes or tubesG and H. and throughthis plate these tubes pass, as shown in figs. 2 and 4. The lower endsof the tubes G and H- are connected together in triples, as abovedescribed, by means of three-way conpling-boxes J, which have concavesbckets g yg formed in them for receiving enlargement g g g of acorresponding shape and size, which are formed on the ends of the saidpipes. By means of cross-heads It. and screw-bolts and nuts 2', thecoupling 'boxes are secured firmly and tightlyagninst the ends of thctubes, as shown in figs. Z and 4. The object of thus applying thecouplings J to the pipes G H to secure perfectly tight joints, and atthesame time provide for expansion and contractionof the parts, byhaving a. kind of ball-and-sockctjoint for each pipe, 'which will allowof slight movement? without causing leakage.

The pipe L, which is connected'to the pipes D, outside of the furnacewall, is designed as afeed pipe for supplying water to the generator,and the cocks 1, on vertical pipe M, i e designed for gauge ortry-cocks, for determining the quantity of water in the generator.

The generator should be filled with water to a point which is just belowthe upper ends of pipes E, and when this is done and heat applied inthe'furnace, the water in the pipes G II, which are most exposed to theheat, will rise, while that which is in the pipes D D, which are leastexposed to the heat, will descend and supply v its place, thus creatinga circulation, as indicated by the arrows in fig. 4. The large pipes Dbeiugless exposed to heat than the pipes G and H, the temperature ofwater in them will be lower than that of the water in the pipes E G II,consequently there will be a forced circulation of water in thegenerator, and the largest pipes will be constantly acting as feeder forthe smaller pipes, within which latter steam is'rapidly generated andconveyed directly into the steam-chambers. above the water level.

By the arrangement which I have shown there are three descendingcurrents flowing rapidly from each one of the pipes D, through pipes'which extend downward; and from the ends of these latter the water isdivided into six ascending currents. entering each one of the pipes atrli'll'eront points below its upper ends.

In applying illGlHlHliS ol' the large and small pipes G-and H to theirrespective pipes D and E, regard is bad to the best mode of exposingthem to the lire, so-that the heated products of. combustion shallcirculate around and between all of them, so that all shall be exposedto heat. It is desirable to have such banks or series: of p'pcs exposedto the ascending currents of heat; and for this purpose the smallestpipes H are arranged in inclined planes betwceiL-thc plane of the largerpipes G, as shown in fig. 3.

It will be seen by reference to the drawings, 1, 2, and 4, that thelower ends of the pipes D and E, and the lower ends of the pipes G andII, are exposed in such manner that access can be had to them fromwithout the furnace, for cleaning and for other purposes.

The invention herein described is not confined-to any definite number orsize of'pipes, tubes, or cylinders, as one of the great advantages ofmy-invcntion .is that I am enabled to increase the number of tubesindefinitely without diminishing the-strength of the generator. Anotheradvantage is that there can be no accumulation or trapping of steam inany of the pipes,- as the forced currents of water will carry along withthem the steam as rapidly. as it is generated, and deliver this steaminto the steam-chamber above the water level.

Having described my invention, what I claim as new, and desire to secureby-Letters Patent, is-

1. The arrangement of inclined pipes or cylinders, of difierentdiameters or capacities, communicatingas described, for the purpose ofproducing a 'forced circulation of water in all parts when exposed tothe action of heat, substantially in the manner described and shown.

2."lhe arrangement of pipes G andiH with pipesD and E, the ends of saidpipes projecting outside of the furnace walls, substantially as and forthe purpose described.

3. The arrangement of ball-couplings J and pipes G G H, said pipes beingof different diaineters, and in communitstion with one another by meansof the chamber on which the ball-joint seats for the pipes are foi med,substantially as and for the purposes herein described.

4. A steam superheztter, A, in conjunction with it steam generator,operating upon the principle substantially as specified.

5. A steam-receiving chamber, B, in combination with nsei'ies of pipesof different diameters, connected together at their ends, end-arrangedsubstnntiall as described.

6. The combination of pipes G and" H with pipes D E, substantially inthe manner and for the purpose described.

HENRY FEYH.

. Witnessesf M. 0. Leona, Geo. T. Emcmz.

